Culbertson

System devised by Ely Culbertson and set out in the 1933 Blue Book and 1936 Gold Book.

The main features of the system are:

  • Valuation by honour tricks;
  • standards for biddable suits;
  • Forcing Two Bids;
  • Forcing Takeout (or jump shift);
  • Strong NT;
  • Jump rebids are not forcing unless in a new suit;
  • Asking Bids.

For more information...